Step 1: Parts

- Disposable Camera - You can get a free*, used disposable camera anywhere film is developed

Optional:

- Soldering Iron - Copper wire - Electrical tape

*I've gotten all of mine for free, but I've heard of other people spending up to a quarter for each camera.

Step 2: Take it apart

Tear the camera apart. Don't worry about breaking it (it was free!!), all you need is the circuit.

Step 3: Charge it up

Stick the battery from the camera in the back of the circuit (Get the polarity right). You might want to use electrical tape to secure it because it tends to fall out.

Then hold the button for a few seconds. You should hear a high-pitched whine. When the whine stops your capacitor is charged.

Stay clear of all the metal parts when the battery is in, or when it is charged. You might even want to electrical tape over all but the capacitor contacts.

Step 4: Have fun

Test your new taser one something/someone by touching it/them with both capacitor contacts.

Most capacitors are charged from 300 to 360 volts with very low amps (didn't even register on my multimeter) so you dont need to worry about hurting anyone too bad (I've been shocked quite a few times).

If you want, you can even take out the capacitor and solder wires in its place. The voltage stays the same and the shock is constant (as opposed to the quick discharge of the capacitor), but it doesn't hurt quite as bad. I think the trade is worth it. It will still make your arm twitch pretty good.

I think it was lenz who said the output voltage is dependent on the rate of change of the current, So if you quickly rub the coil across the battery the faster the connection/ dis-connection the higher the voltage fom the coil. also always fit a diode in reverse polarity near the battery as when you dis-connest the battery the curren changes negativly and so does the voltage frying everything

that doesnt just give u a tingle that thing is deadly. i tried it on my mate and he was on the floor for 5 minutes. like his joints were soldered together.dont try this on ur self. it is seriously deadly with a 1.5v battery (AA) 9v battery... screw that myspace.com/timmywazere

Walgreens could work, in the past I used Walmart to get what I needed just by going to the camera section and asking for the used disposable cameras. This only worked for me at one store, the rest of the locations told me I couldn't have them. Good luck!

an e.m.p you say? you can make small range ones with capacitors and coils of wire. but true e.m.p's with any range require a large amount of capacitance, at a high voltage, and call for a coil to be suspended inside a metal tube. then at the moment of discharging the charge through the coil an explosion must take place. at one end of the tube. thrusting the coil down on the tube one turn at a time in rapid succession, creating a short circuit and forcing the magnetic wave of energy into a smaller and smaller space. compressing it. until the last coil touches and it explodes from said device carrying a large amount of energy and covering a fair distance. transferring its energy magnetically to wires and components in electronical devices (most of them are shielded so any real damage would take a lot of energy) causing voltages that are too high and currents to flow wrong ways. destroying said devices :3 you might be able to get it to knock out those little pocket games you can get at target though :D

Wow I built one of these after doing a little research and I must say they work great! Even though I am (defiantly) below the age where I can legally buy a taser I am guessing that this is almost as good.

a while back you said u couldn't find any free camera's, i went to walgreens, and asked for disposible camera's with no film, or that they took the film out of , just say your going to recycle them, and u can get some, i got 18 free with my first try, go about once a week, although i had 18, only 5 actually worked for making tasers with, and only the kodak ones, but if you press the flash button before u even open it, and hear it charge, that's a good idea that it will work. just dont take forever soddering something, because it messes up the board, and all it will be good for then is getting the battery out. :-) cheers!

The proper way to discharge these capacitors is to create a little jig out of 100k thru hole resistor. Take a pair of INSULATED needle nose pliers and bend the leads down like you were going to put them thru a pcb. Next step is to match up the polarity of the leads. The longer lead is the positive on the resistor. The capacitor should be marked on the can. Next holding the resistor gently with the pliers carefully touch the leads of resistor to the leads of the capacitor and keep them their for about 15 seconds or until your comfortable. You will know it works if the resistor is hot. I have found it helps to do this with the camera partially dissassembled in a panavise junior. This way you can concentrate on just keeping your hand from shaking the first time you do this! Sparking the cap with a screw driver while pretty and cool is very bad for the capacitor. Not to meantion you could hurt yourself or fuse the screwdriver to the lead on the capacitor! Hope this helps!